Relay Adjustable Timer Module - MicroUSB Power mq9 The Thermometer Digital Display DS18B20

The Thermometer Digital Display DS18B20 is a temperature sensor with digital output designed for temperature logging

micro-pumps

4-port USB hub board x 1

For the Arduino Nano boards

Pull the jumper for a full 5V supply

Relay Adjustable Timer Module - MicroUSB Power mq9 The Thermometer Digital Display DS18B20Simple Load Switching for Arduino, ESP32, and Automation Builds The Relay Adjustable Timer Micro USB Power Module is a practical relay module from Circuitrocks for students, makers, and repair friendly builds. It fits well in projects that need switching external loads, while keeping setup straightforward for testing and prototype work. Compared with generic parts, this product stands out through details such as USB connection, Compact size, USB. That